"Horace's many snake-headed Cerberus followed a long tradition of Cerberus being part snake. This is perhaps already implied as early as in Hesiod's Theogony, where Cerberus' mother is the half-snake Echidna, and his father the snake-headed Typhon. In art Cerberus is often shown as being part snake,[13] for example the lost Corinthian cup shows snakes protruding from Cerberus' body, while the mid sixth-century BC Laconian cup gives Cerberus a snake for a tail."